Mack Brown

The undrafted free agent out of Florida failed to make the final round of cuts last preseason, but rejoined Washington as a practice squad member until he was promoted to the active roster in late October. In the second half of Week 16, Brown was given the reigns in the backfield and didn't disappoint, recording 82 yards and one touchdown on eight attempts. However, between Rob Kelley, Samaje Perine, and Chris Thompson, it doesn't seem like Brown will have too many opportunities to take the field this season.

Undrafted last year out of Florida, Brown wasn't on an NFL roster last season, so he'll aim to earn a spot this year with the Redskins. However, with rising second-year running back Chris Jones slated to lead the way, and Chris Thompson, Silas Redd and rookie seventh-rounder Keith Marshall also around, Brown faces plenty of competition ahead of training camp.

Undrafted rookie running back. Will compete for a roster spot during training camp.